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민감도 해석기법을 이용한 지오데식 돔의 형상 및 크기 최적화 방안
남경연(Nam Kyung-Yun),박영신(Park Young-Sin),김호룡(Kim Ho-Ryong),이한주(Lee Han-Joo),김호수(Kim Ho-Soo) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
This study presents the efficient structural optimization technique using sensitivity analysis for geodesic dome structure. To this end, we practice stress and displacement sensitivity analysis considering structural behavior characteristics of dome structure. Specifically, automated computation of joint coordinates to consider the shape change is required. Also, under the 'constant-shape' assumption, the resizing technique of member is developed. The geodesic dome models considering three groupings are presented to illustrate the features of applied algorithm.
김보정(Kim Bo-Jung),남경목(Nam Kyung-Mok),전규엽(Jeon Gyu-Yeob),홍원화(Hong Won-Hwa) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.3
Today, as our industries and businesses are almost dependent on electric apparatus or on-line system, management system of electric facilities is necessary to be considered as the part of the maintenance of the building. Also, facilities of power supplies can't always provide stable power service because of various situations of blackout caused by natural disaster, construction of extension building or remodeling building. And sometimes the lack of emergency power supplies can be the reason of life and property loss. So a study of emergency power system is required. Therefore, we will research the current situation of emergency power equipment of Buildings, and analyze the importance of emergency power equipment depends on case.
김해지(Hae-Ji Kim),김남경(Nam-Kyung Kim) 한국기계가공학회 2009 한국기계가공학회지 Vol.8 No.1
This paper describes the fuel oil characteristics of mulching waste vinyl by indirect heating emulsion system. For the emulsion experiment of waste vinyl, the system is composed of melting furnace, the 1th pyrolysis furnace, and the 2nd pyrolysis furnace. The mulching waste vinyl is used for the fuel oil characteristics analysis of mulching waste vinyl. The refined oil, gasoline, and diesel oil are extracted and quantified to analysis the fuel oil characteristics. From the results of experiments, it has been shown that the production of fuel oil from mulching waste vinyl is possible using the emulsion system.
김호수(Kim Ho-Soo),이한주(Lee Han-Joo),남경연(Nam Kyung-Yun) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.1
This study presents the optimal alternative evaluation technique of geodesic dome structure according to the member division and grouping method. To this end, we need the automated computation of joint coordinates and numbering for the consideration of shape change effect. Also, the member resizing technique under the 'constant-shape' assumption and the design variable linking technique for member grouping are developed. Specifically, the optimal design formulation and algorithm are presented through the sensitivity analysis technique and the various example models are applied in order to find out optimal alternative of geodesic dome structure.